Phylum Radiolaria Müller, 1858 see Subphylum Radiozoa Cavalier-Smith, 1987
   Superclass Polycystina Ehrenberg, 1838 see Superclass Polycystinia Ehrenberg, 1838
     Class Stauraxonaria Afanasieva & Amon, 2005
       Order Spongurata Haeckel, 1862
         1 Family Sponguridae Haeckel, 1862
         2 Family Litheliidae Haeckel, 1862